RFR: Merge jdk19

Thu Jun 30 23:58:47 UTC 2022

Forwardport JDK 19 -> JDK 20

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Commit messages:
 - Merge remote-tracking branch 'jdk19/master' into Merge_jdk19
 - 8289278: Suspend/ResumeAllVirtualThreads need both can_suspend and can_support_virtual_threads

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/jdk/pull/9341/files
  Stats: 4 lines in 2 files changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/9341.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9341/head:pull/9341

PR: https://git.openjdk.org/jdk/pull/9341